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DP IB Biology: HL

Topic Questions

Home / IB / Biology: HL / DP / Topic Questions / 2. Molecular Biology / 2.1 Metabolism & Water / Multiple Choice: Paper 1


2.1 Metabolism & Water

Question 1

Marks: 1

Carbon is one of the most abundant elements found in the molecules of living organisms. 

Which of the following statements does not refer to a property of carbon that allows it to play an integral biochemical role in the molecules of living things. 

  • It has four electrons in its outer shell meaning it can form four covalent bonds with other atoms

  • When it bonds with hydrogen it creates a dipole that allows it to form hydrogen bonds with water and other polar molecules

  • It can form double and triple bonds with adjacent carbon atoms to allow unsaturated compounds to form

  • Produces a tetrahedral-shaped structure which allows the formation of varied carbon compounds which have different 3-D shapes

Choose your answer
  
Key Concepts
Carbon

Question 2

Marks: 1

Which of the options below refers to the features of catabolism?

  • E xergonic, condensation reaction, an example is polypeptide synthesis

  • Endergonic, hydrolysis reaction, an example is respiration

  • Endergonic, condensation reaction, an example is photosynthesis

  • Exergonic, hydrolysis reaction, an example is deamination

Choose your answer
  
Key Concepts
Catabolism

Question 3

Marks: 1

Water has the ability to act as a solvent and dissolve many ionic and covalent compounds.

Which of the following 3-carbon compounds will not dissolve in water?

  • Propanoic acid

    q3-easy--option-a-2-1-metabolism--water-ib-dp-biology-sl





  • Propanol

    q3-easy-option-b-2-1-metabolism--water-ib-dp-biology-sl

  • Glycerol

    q3-easy-option-c-2-1-metabolism--water-ib-dp-biology-sl






  • Propane

    q3-easy-option-d-2-1-metabolism--water-ib-dp-biology-sl








Choose your answer
  
Key Concepts
Properties of Water

Question 4

Marks: 1

The table below shows four biological molecules and their component elements.

Which of the rows, A to D, correctly identifies the elements in each molecule?

  Sucrose Triglyceride Insulin DNA nucleotide
A C, H, O C, H, O, N C, H, O C, H, O, N, P
B C, H, O, N C, H, O C, H, O, N, P C, H, O, N, S
C C, H, O C, H, O C, H, O, N, S C, H, O, N, P
D C, H, O, N C, H, O, P C, H, O, N, P C, H, O, N, S
    Choose your answer
      
    Key Concepts
    Carbon Compounds

    Question 5

    Marks: 1

    The specific heat capacity of water is the highest of all liquids. Which of the following would be a correct definition of specific heat capacity? 

    • The heat required to change one mole of liquid into one mole of gas. 

    • The heat required to raise the temperature of 1kg of liquid by 1°C. 

    • The heat required to change one mole of solid into one mole of liquid.

    • The ability of a solid to transfer heat to a liquid. 

    Choose your answer
      
    Key Concepts
    Properties of Water